diff --git a/fedora-iot-base.json b/fedora-iot-base.json
index 18eec22..eaedd75 100644
--- a/fedora-iot-base.json
+++ b/fedora-iot-base.json
@@ -6,6 +6,8 @@
 
     "selinux": true,
 
+    "tmp-is-dir": true,
+
     "recommends": false,
 
     "documentation": false,